Pronunciation: [wɒst ɒnðə and ˈʌp] (IPA)
Correct spelling for the English word "wast on the and up" is [wɒst ɒnðə and ˈʌp], [wɒst ɒnðə and ˈʌp], [w_ɒ_s_t ɒ_n_ð_ə__ a_n_d ˈʌ_p] (IPA phonetic alphabet).